component
VIPER12ASTR-E
Public Made by Adomby adom
STMicroelectronics AC-DC Controllers and Regulators, SO-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.md+14@@ -38,6 +38,20 @@ VIPER12ASTR-E from STMicroelectronics, in a SO-8. Pinout and pin descriptions ex - Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm` - 3D model: SO-8 (KiCad packages3D, STEP) +## 3D model downloads++Two STEP files. Same geometry, different body top:++| File | Size | Use it when |+|---|---|---|+| [`viper12astr-e.step`](viper12astr-e.step) | 122 KB | You want the bare part, or you mark your own boards. |+| [`viper12astr-e-etched.step`](viper12astr-e-etched.step) | 2.1 MB | You want the part with `VIPER12ASTR-E` already on it. |++The marking in the etched file is real recessed geometry cut into the solid, not a+texture or a decal: 550 faces against 147 in the bare model. It+survives export, section views, and rendering in any CAD tool, and it drops straight+into KiCad or Fusion with no extra setup.+ ## Provenance Data extracted from the manufacturer datasheet, not a distributor listing:
package.json+1−1@@ -1,6 +1,6 @@ { "slug": "viper12astr-e",- "version": "0.1.0",+ "version": "0.2.0", "type": "component", "description": "STMicroelectronics AC-DC Controllers and Regulators, SO-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "tags": [
page.json+8−8@@ -4,7 +4,7 @@ "slug": "viper12astr-e", "title": "VIPER12ASTR-E", "brief": "STMicroelectronics AC-DC Controllers and Regulators, SO-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",- "version": "0.1.0",+ "version": "0.2.0", "license": "CC-BY-SA-4.0", "tags": [ "component",@@ -46,19 +46,19 @@ "number": "3", "name": "FB", "type": "input",- "description": "Feedback input. Useful voltage range extends from 0 V to 1 V and defines the peak drain MOSFET current. Current limitation (maximum drain current) is obtained by shorting FB to SOURCE. Input impedance R_FB ~ 1.2 k\u03a9; I_FB shutdown current ~ 0.9 mA."+ "description": "Feedback input. Useful voltage range extends from 0 V to 1 V and defines the peak drain MOSFET current. Current limitation (maximum drain current) is obtained by shorting FB to SOURCE. Input impedance R_FB ~ 1.2 kΩ; I_FB shutdown current ~ 0.9 mA." }, { "number": "4", "name": "VDD", "type": "power_in",- "description": "Power supply of the control circuits (9 V to 38 V operating range). Also provides charging current during start-up via the high-voltage current source connected to DRAIN. Hysteresis comparator monitors VDD with V_DDon \u2248 14.5 V (starts switching, turns off start-up current source) and V_DDoff \u2248 8 V (stops switching, turns on start-up current source). V_DDovp \u2248 42 V overvoltage threshold."+ "description": "Power supply of the control circuits (9 V to 38 V operating range). Also provides charging current during start-up via the high-voltage current source connected to DRAIN. Hysteresis comparator monitors VDD with V_DDon ≈ 14.5 V (starts switching, turns off start-up current source) and V_DDoff ≈ 8 V (stops switching, turns on start-up current source). V_DDovp ≈ 42 V overvoltage threshold." }, { "number": "5", "name": "DRAIN", "type": "power_out",- "description": "Power MOSFET drain. Also used by the internal high-voltage current source during start-up phase to charge the external VDD capacitor. BV_DSS = 730 V. Pins 5, 6, 7, 8 are internally connected together (multiple DRAIN pins improve thermal dissipation - connect all to the drain node and copper pour, at least 200 mm\u00b2 of 35 \u00b5m Cu)."+ "description": "Power MOSFET drain. Also used by the internal high-voltage current source during start-up phase to charge the external VDD capacitor. BV_DSS = 730 V. Pins 5, 6, 7, 8 are internally connected together (multiple DRAIN pins improve thermal dissipation - connect all to the drain node and copper pour, at least 200 mm² of 35 µm Cu)." }, { "number": "6",@@ -150,9 +150,9 @@ "docs/hero.png", "docs/viper12astr-e-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"+ "viewers/footprint.html",+ "pads.json" ],- "visibility": {- "public": true- }+ "visibility": "public",+ "description": "STMicroelectronics AC-DC Controllers and Regulators, SO-8. Datasheet-verified pinout, KiCad symbol/footprint/3D." }